|
|
|
|
2, 4, 8, 11, 13, 16, 18, 22, 26, 28, 31, 35, 38, 40, 44, 48, 51, 53, 56, 58, 62, 65, 67, 70, 74, 78, 80, 83, 85, 89, 92, 94, 97, 99, 103, 107, 110, 112, 115, 119, 121, 124, 126, 130, 133, 135, 138, 140, 144, 148, 150, 153, 157, 160, 162, 165, 167, 171, 175, 178, 180
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
FORMULA
|
a(n) is probably asymptotic to 3*n.
|
|
MAPLE
|
isA078649 := proc(n)
true;
else
false;
end if;
end proc:
option remember;
if n = 1 then
2;
else
for a from procname(n-1)+1 do
if isA078649(a) then
return a;
end if;
end do:
end if;
end proc:
|
|
MATHEMATICA
|
a2 = {1, 2, 2}; Do[ a2 = Join[a2, {1+Mod[n-1, 2]}], {n, 3, 80}, {a2[[n]]}]; a3 = Accumulate[a2]; Complement[ Range[ Last[a3]], a3] (* Jean-François Alcover, Jun 18 2013 *)
|
|
PROG
|
(Haskell)
a078649 n = a078649_list !! (n-1)
a078649_list = map (+ 1) $ filter ((== 0) . a054354) [1..]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|